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Finding the Third Proportional to 81,816 and 179,247

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Solution

The third proportional to 81,816 and 179,247 is: 392,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816 : 179,247 = 179,247 : x
  2. Step 2: Convert to fraction form
    81,816/179,247 = 179,247/x
  3. Step 3: Cross multiply
    81,816x = 179,247 × 179,247
  4. Step 4: Simplify right side
    81,816x = 32,129,487,009
  5. Step 5: Solve for x
    x = 32,129,487,009/81,816
  6. Step 6: Final answer
    x = 392,704.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.